Primeval is a monster hit

There's just one problem with Primeval - and that's ITV's marketing department. Yes, the first series was about a ragtag team that goes around dealing with rampaging dinosaurs, but the writers were clever enough to realise how limiting this could be and started throwing in beasts from the future, time paradoxes, butterfly effects and oodles of conspiracy theories. Why not sell the series as that and win over some of the snootier sci-fi fans out there?

And now in its third series, Primeval has blossomed into Britain's best sci-fi franchise for some time. Hell, it's probably the best British drama on TV at the mo (not that there's much competition). The loss of painfully earnest thesp Douglas Henshall has brought about a reinvention, with new lead Jason Flemyng bringing some Tennant-esque charisma and derring-do to proceedings. The rest of the cast have been brilliantly repositioned, and Juliet Aubrey is still amazing as totally bonkers eco-warrior bad gal Helen.

And with 10 episodes to play with this time round, there's a proper story arc involving a sinister government group that looks set to bring about Armageddon. Oh, and there's the odd dinosaur on the loose too. But that's barely worth mentioning.

Here's a look at the next episode, which looks to be the most frightening thing Saturday evening telly has seen in a long time...